Lighting fixtures for recessed ceiling mounting



May 3; 1960 R. s. FREMONT 2,935,502

7 LIGHTING FIXTURES FOR RECESSED CEILING MOUNTING Filed Dot. 7, 1957 2Sheets-Sheet 1 May 3, 1960 R. s. FREMONT 2,935,602

LIGHTING FIXTURES FOR RECESSED CEILING MOUNTING Filed Oct. v, 1957 2Sheets-Sheet 2 lull In A I United States Patent O LIGHTING FIXTURES FORRECESSED CEILING MOUNTING Robert S. Fremont, Chicago, Ill., assign'or toHalo Lighting Products, Inc., Chicago, 111.

Application October 7, 1957, Serial No. 688,761

1 Claim. c1. 240-78) This invention relates to a lighting fixture forrecessed ceiling mounting.

One of the objects of this invention is to provide a lighting fixturefor recessed ceiling mounting formed essentially of two parts, one partcomprising a frame member which is secured to the ceiling and the otherpart comprising a reflector or housing detachably secured to andsupported by the frame. The reflector or housing may be secured to anddetached from the frame for installation of the fixture and forservicing of same after the frame has been secured to the ceilingsurface.

Another object of the present invention is to provide a lighting fixturefor recessed ceiling mounting formed essentially of two parts, with oneof the parts supporting the electrical components in assembled mountedrelationship prior to the mounting of the parts so that same may bereadily and quickly secured to a ceiling structure and when thus securedbe readily accessible for connection of the lead-in electricalconductors, and wherein the second part forming the reflector may beeasily and quickly attached to the first part.

Another object of this invention is to provide .a lighting fixture ofthe foregoing character formed of two parts, namely a frame and areflector, the frame supporting a wired junction box so that after theframe is mounted the junction box is readily accessible through theopening in the frame, the reflector being readily attachable to theframe after the frame has been mounted and also readily detachabletherefrom. Another object of this invention is to provide a lightingfixture of the foregoing character having a frame and a detachablereflector, with the frame provided with a lamp socket and a junction boxconnected by a fixed conduit which supports the conducting wires, saidsocket, junction box and conduit being mounted in fixed-relation to theframe so that when the frame is mounted, prior to attachment of thereflector, the parts are in their assembled relationship, with thejunction box readily accessible for connecting the lead-in wire.

Another object of this invention is to provide a lighting fixture of theforegoing character in which the lamp socket is supported on thereflector.

Other objects will become apparent as this description progresses.

In the drawings:

Fig. 1 is a top plan view of the fixture.

Fig. 2 is a side elevational view with the reflector member removed.

Fig. 3 is a cross sectional view taken on lines 3-3 of Fig. 1.

Fig. 4 is a bottom plan view with the difiusing member removed.

Fig. 5 is a cross sectional view taken on lines 5-5 of Fig. 1.

Fig. 6 is a perspective view of a modified form of construction, and

Fig. 7 is a perspective view of a modified form of mounting unit for thejunction box.

Reference will first be had to the structure shown in Figs. 1 to 5inclusive. The fixture generally indicated at 10 comprises a rough inframe generally indicated at 12 and a reflector generally indicated at14 which is detachably secured thereto, as will be described. The roughin frame 12 is rectangular in plan and has side walls 16, 17, 18 and 19joined together and inwardly extending flanges 16a, 17a, 18a and 19aformed at right angles to said side walls. A large rectangular shapedopen area 20 is provided which is bounded by said flanges. A pair oftongues 22 spaced from each other are struck out or stamped from flange17a and said tongues extend downwardly for engagement with the reflector14; The opposed flange 19a supports a threaded screw or fasteningelement 24 to engage the reflector.

Fixedly secured by suitable rivets to the top of flange 17a of the frame12 is a socket box 28 having a front opening which is closed by adetachable plate 30. The plate 30 has a pair of rearwardly extendingslotted cars 31 which engage screws 32 in the side walls of the box toremovably secure said plate thereto. The plate 30 has an enlargedopening 34 within which is supported an electrical lamp socket 36 forsupporting a light bulb 37. The socket is attached to said plate by anyconventional attaching means.

Secured to the side wall'18 of the frame by suitable fastening members38 is an angle bracket 41 providing a horizontal support upon which isfixedly secured a terminal wiring compartment or junction box generallyindicated at 40. Connected at one end to the socket box 28 and at itsopposite end to the junction box is a rigid L shaped pipe or tubularconduit 42 which communicates with the interiors of the socket box andjunction box and forms a passageway for the conducting wires. One end ofthe conducting wires is connected to the electrical socket 36 and theother end of the conducting wires terminates in the junction box 40 forinterconnection with the lead-in wires, as is well understood. Thejunction box 40 is provided with removable front and rear plates 44 and45 and the rear plate 45 is provided with the usual knock-out portions,as is well understood in the art, whereby the lead wires may be passedfor connection to the conducting wires in the junction box. It will beseen that the socket box 28 for supporting the socket 36 and thejunction box 40 are connected by the rigid tubular conduit 42 and theelectrical conductors are therein contained and connected to the socketso that the rough in frame and the foregoing described elements form ineffect a:single integral unit ready for instantaneous installation.

The side walls 16, 17, 18 and 19 of the frame 12 each have a pair ofspaced loop shaped ears 46 preferably die struck from the side walls.The ears 46 receive the vertical legs 48 of the hanger bars 50, bestshown in Fig. 3, which hanger bars 50 are suitably secured to stringers52 Within the ceiling of the room. The vertical legs 48 of the hangerbars are slotted and engage screws or fastening elements 54 secured tothe side walls of the frame 12 to permit vertical adjustment of theframe 12 with respect to the hanger bars 50. The frame is therebysecurely supported in the ceiling.

The upper member of the fixture generally indicated at 14 is contouredso that it serves as a reflector and has a parabolic dome 56 anddownwardly and outwardly inclined substantially flat side walls 58 and afront inclined wall 60. The rear wall 62 of the reflector issubstantially vertical as at 64 at its central portion and outwardlyinclined at its opposite adjacent end portions as at 66. The verticalportion 64 of the rear wall has an enlarged circular opening 68 foralinement with the socket 36 and through which the socket extends. Thebottom of the reflector 14 terminates in outwardly hori- Patented May 3,1960 zontally extending side flanges 58a and front and rear flanges 60aand 62a which form a continuous lip around the reflector to engage theunderside of the flanges of the frame 12. A pair of elongated slots 70are provided in the rear flange 62a which engage the ears 22. Theopposite or front flange 60a has a bayonet shaped slot 72 to engage thefastening member 24 on the frame 12.

7 After the frame 12 is secured to the ceiling, as previously described,and the electrical connection is made to the electrical conductor injunction box 40, the reflector 14 may be inserted from the bottom of theframe and secured to the cars 22. After the enlarged opening of thebayonet slot 72 passes the head of the fastening element 24, thereflector is shifted slightly laterally to engage the reduced portion ofthe slot 72 which will lock, the reflector in locking position. Thereflector may be readily removed by shifting it, as will be understood.A diffusing member generally indicated at 74 and best shown in Fig. 3 issupported by the frame 12. The diffusing member comprises a holder 75which supports a diffusing glass 76. The holder 75 has secured to it atits opposite sides U shaped clips generally indicated at 77, whose legs78 terminate in outwardly extending ends 79. The horizontal flanges 16aand 18a of the frame are provided with slots 80 which receive the legs78 of the clips. The diifusing member 74 may be lowered for readyservicing of the fixture and the difiusing member may be removed fromthe rough in frame by bringing the legs together to clear the slots 80.

Figure 6 shows a modified form of construction. This constructiondiffers from that previously described in that the socket box is notmounted on the rough in frame but is mounted on the reflector and aflexible conduit connection is established between the junction box andsocket box. The rough in frame generally indicated at 12b is similar tothe rough in frame 12. The reflector 14b is generally similar toreflector 14 except that on its rear wall 62b a socket box 28b issecured thereto, which socket box supports a socket extending into thereflector through a suitable opening. The junction box 40b is similar tojunction box 40 and is secured in the same manner to the frame 12b by aright angled bracket 41b. A flexible metal conduit or B-X 82 connects atits opposite ends to the junction box 40b and to the socket box 28b andcommunicates with the interior of each for passage of the electricalconducting wires.

Fig. 7 shows a modified construction for supporting the junction box.Instead of mounting the junction box supporting bracket in a fixedimmovable position with relation to the rough in frame it is mounted sothat it and the junction box may be moved vertically up or down. inrelation to the rough in frame whenever the installation so requires. Apair of rigid solid straps or bars 84,

each having elongated slots 85 are permanently secured or riveted byfastening elements 86 to the frame 120. The vertical leg of the bracket41c is secured to the strap 84 by fastening elements 88 through theslotted portion 85. Thus the bracket 41c and junction box 40c thereonare adjustable vertically with respect to the straps and the frame.

It will be understood that various changes and modifications may be madefrom the foregoing without departing from the spirit and scope of theappended claim.

I claim:

A fixture for recessed ceiling mounting comprising a housing formed ofan upper section constituting the reflecto'r'and a separate lowersection, said lower section having short inwardly extending horizontalflanges at the top thereof to define an enlarged rectangular shapedopening inwardly of said flanges, said upper section having outwardlyextending horizontal flanges defining a rectangular shape, means fordetachably securing the outwardly extending flanges of said uppersection to the inwardly extending flanges of the lower section todetachably support the upper section in locking engagement with thelower section, a socket box for supporting a lamp socket, said socketbox being fixedly secured to one of the flanges of said lower sectionexteriorly of said lower and upper sections, a junction box fixedlysecured to said lower section on a side adjacent the mounting of thesocket box and on substantially the same plane as said socket box, arigid conduit connecting said junction box and said socket box, anelectrical conductor connected to said lamp socket and passing throughsaid rigid conduit and terminating in said junction box, said lowersection being adapted when mounted in a ceiling to support said socketbox and junction box and electrical conductor in a fixed assembledrelationship so that the terminal of said conductor in said junction boxis in position for ready attachment to a lead-in wire, said enlargedrectangular shaped opening in said lower section permitting access tosaid junctionbox for connecting said lead-in wire when said uppersection has been detached from said lower section.

References Cited in the file of this patent UNITED STATES PATENTS2,561,986 Jones July 24, 1951 2,602,881 Pryne July 8, 1952 2,630,521Kirlin Mar. 3, 1953 2,639,368 Pryne May 19, 1953 2,741,695 SchockettApr. 10, 1956 2,802,096 Isler Aug. 6, 1957 2,829,243 Stonehill Apr. 1,1958 2,840,691 Bobrick et a1 June 24, 1958 2,863,990 Wince Dec. 9, 1958

